Typewriter ribbon



Aug; 12, 1958 F. c. YAWGER ETAL 2,347,106

TYPEWRITER mason Filed May 16, 1957 v INVENTORS, FOSTER C. YAWGER EUGENE E. MCCARTHY BY W, mm

United fiice Patented Aug. 12, 1958 TYPEWRI'EER RIBBON Foster C, Yawger, hcottsville, and Eugene E. McCarthy, Rochester, N. Y., assignors to Kee Lox Manufacturing gompany, Rochester, N. Y., a corporation of New ork Application May 16, 1957, Serial No. 659,599

12 Claims. (Cl. 197-172) This invention relates to a typewriter ribbon and has for its principal objective to afford an inked ribbon in which the ink has been removed from the end portions of the ribbon so that it can be handled and attached to an empty spool of a typewriter without soiling the fingers.

Another purpose is to provide a structure in which the end portion of the ribbon has attached thereto an adhesive tape preferably extending somewhat beyond the end of the ribbon and acting to de-ink the portions of the ribbon underlying the adhesive tape so that the ribbon may be readily attached by fastening the adhesive tape exten sion to an empty spool or by removing the adhesive tape and securing the end of the ribbon to the empty spool, in either case without soiling the fingers.

An additional object of the invention is to afford a construction embodying an adhesive tape of a particular nature that is adhesively fastened over the outer surface of'the end portion of the ribbon and acts successfully to remove substantially all the impregnated ink by absorption from the portion of the ribbon underlying the adhesive tape, so that the ribbon can be grasped if the adhesive tape' is removed, without soiling the fingers, both surfaces of the ribbon being free of ink after attachment of the adhesive tape.

A further purpose is to aiford a typewriter ribbon having attached thereto a non-metallic bar of rubber or the like constituting a reversing mechanism actuator that in no way affects the ink or ribbon, thus overcoming the objections to eyelets and other metal switch devices.

More particularly the invention has for an object to provide a non-metallic bar or element that is adhesively attached transversely of the ribbon and additionally secured thereto by an adhesive de-inking tape extending endwise of the ribbon over its outer surface and adhesively secured both to the ribbon and to the non-metallic bar which constitutes an abutment or stop which actuates the typewriter reversing mechanism.

To these and other ends the invention consists in the construction and arrangement of parts that will appear clearly from the following description when read in conjunction with the accompanying drawings, the novel features being pointed out in the claims following the specications.

In the drawings:

Fig. 1 is a perspective view of a typewriter ribbon incorporating a preferred embodiment of the invention, and showing the non-metallic reversing mechani-sm actuator and de-inking tape secured to the outer surface of the ribbon;

Fig. 2 is an enlarged detail perspective view of the non-metallic or rubber bar or element for actuating the reversing mechanism;

Fig. 3 is an enlarged detail perspective view showing the non-metallic or rubber bar or reversing mechanism actuator secured to the ribbon before attaching the adhesive de-inking tape, and

Fig. 4 is an enlarged detail perspective view showing the ribbon with the non-metallic reversing mechanism actuator attached, and the de-inking tape attached to the ribbon and non-metallic actuator.

Referring more particularly to the drawings in which like reference numerals refer to the same parts throughout the several views, 1 designates a metal spool on which is wound a conventional inked typewriter ribbon 2, while 3 designates a bar or member of non-metallic material having a length equal to the width of the ribbon and an adhesive surface by which it is attached to the outer face of the ribbon transversely thereof as shown in Fig. 3.

Preferably this non-metallic bar or element 3 which constitutes the actuator for the ribbon reversing mechanism is cut from rubber sand blast stencil tape about .048" thick which is secured to the ribbon by its adhesive surface, and avoids the use of eyelets or other metallic elements that have been fastened to typewriter ribbons for the purpose of operating the reversing mechanism. Such metallic devices have a seriously deteriorating effect upon the ribbon causing change of color and other undesirable action which it is highly important to overcome, and such adverse results are eifectively removed by the use of a non-metallic or rubber element such as described above.

The piece of rubber sand blast stencil tape 3 is securely anchored to the ribbon by a strip of adhesive material 4 consisting of latex rubber pressure sensitive tape that extends over the ribbon approximately from four to five inches from the end thereof and over the rubber bar 3, being attached to the inked ribbon on both sides of the bar 3 and extending beyond the end of the ribbon for approximately from one to two inches as shown in Fig. 1.

For effectively de-inking the ribbon, I prefer to employ what is known as No. 235 masking tape manufactured by Minnesota Mining & Manufacturing Company, 900 Bush Avenue, St. Paul, Minnesota. This tape has a crepe paper back or outer surface when attached to the inked ribbon, its adhesive surface being in contact with the ribbon and having a high absorption quality which draws substantially all the ink from the ribbon and leaves the ribbon in such a de-inked condition that it can be handled without any of the ink smearing and remaining on the fingers.

The adhesive de-inking tape which covers the outer surface of the inked ribbon extends beyond the end thereof a sufficient distance so that it can engage the outer surface of the ribbon when wound on the spool and thus retain the ribbon in such wound state until it is to be attached to an empty spool. At such time, the end of the de-inking extension can be engaged and unwound sufliciently to fasten the adhesive extension to an end of the old ribbon or directly to the empty spool, the de-inking tape extension being arranged with the rubber actuating bar located beyond the reverse mechanism. When the rubber reverse mechanism actuating bar is not incorporated in the ribbon, the adhesive de-inking extension can be attached directly to the old ribbon and threaded through the ribbon guides, or threaded through the guides and attached to the empty spool in the usual fashion.

While the invention has been described with reference to the structure shown, it is not confined to the details of construction herein disclosed, and this application is intended to cover such modifications or departures as may come within the purposes of the improvement and the scope of the following claims.

We claim:

1. In a typewriter ribbon comprising a spool and an inked ribbon wound thereon, the improvement which consists in a strip of adhesive de-inking tape of the same width as the ribbon and having its adhesive surface attached to the outer face of the ribbon for a substantial distance from the end thereof, said adhesive tape acting to absorb substantially all the ink from the underlying portion of the ribbon.

2. In a typewriter ribbon comprising a spool and an inked ribbon wound thereon, the improvement which consists in a strip of adhesive de-inking tape of the same width as the ribbon and having its adhesive surface attached to the outer face of the ribbon for a substantial distance from the end thereof, said adhesive tape extending a substantial distance beyond the end of the ribbon and acting to absorb substantially all the ink from the underlying portion of the ribbon.

3. In a typewriter ribbon comprising a spool and an inked ribbon wound thereon, the improvement which consists in a strip of adhesive de-inking tape of the same width as the ribbon and having its adhesive surface attached to the outer face of the ribbon for a substantial distance from the end thereof, said adhesive tape extending a substantial distance beyond the end of the ribbon, the tape having an outer surface of crepe paper and acting to absorb substantially all the ink from the underlying portion of the ribbon.

4. In a typewriter ribbon comprising a spool and an inked ribbon wound thereon, the improvement which consists in a strip of latex rubber pressure sensitive deinking masking tape of the same width as the ribbon and having an adhesive surface attached to the outer face of the ribbon for approximately between four and five inches from the end thereof, said tape acting to absorb substantially all the ink from the underlying portion of the ribbon.

5. In a typewriter ribbon comprising a spool and an inked ribbon wound thereon, the improvement which consists in a strip of latex rubber pressure sensitive deinking masking tape of the same width as the ribbon and having an adhesive surface attached to the outer face of the ribbon for approximately between four and five inches from the end thereof, said tape extending approximately between one and two inches beyond the end of the ribbon and acting to absorb substantially all the ink from the underlying portion of the ribbon.

6. In a typewriter ribbon comprising a spool and an inked ribbon wound thereon, the improvement which consists in a strip of latex rubber pressure sensitive deinking masking tape of the same width as the ribbon and having an adhesive surface attached to the outer face of the ribbon for approximately between four and five inches from the end thereof, said tape extending approximately s between one and two inches beyond the end of the ribbon, the tape having an outer surface of crepe paper and acting to absorb substantially all the ink from the underlying portion of the ribbon.

7. In a typewriter ribbon comprising a spool and an inked ribbon wound thereon, the improvement which consists in a strip of adhesive de-inking tape of the same width as the ribbon and having its adhesive surface attached to the outer face of the ribbon for a substantial distance from the end thereof, said adhesive tape acting to absorb substantially all the ink from the underlying portion of the ribbon, and a reverse mechanism actuating rubber bar arranged transversely of the ribbon between the ribbon and said de-inking tape and adhesively attached to the ribbon, said de-inking tape extending over said rubber bar and adhesively attached to the ribbon on both sides of the rubber bar.

8. In a typewriter ribbon comprising a spool and an inked ribbon wound thereon, the improvement which consists in a strip of adhesive de-inking tape of the same width as the ribbon and having its adhesive surface attached to the outer surface of the ribbon for a substantial distance from the end thereof, said adhesive tape extending a substantial distance beyond the end of the ribbon and acting to absorb substantially all the ink from the underlying portion of the ribbon and a reverse mechanism actuating rubber bar arranged transversely of the ribbon between the ribbon and said de-inking tape and adhesively attached to the ribbon, said de-inking tape extending over said rubber bar and adhesively attached to the ribbon on both sides of the rubber bar.

9. In a typewriter ribbon comprising a spool and an inked ribbon wound thereon, the improvement which consists in a strip of latex rubber pressure sensitive de-inking masking tape of the same width as the ribbon and having an adhesive surface attached to the'outer face of the ribbon for approximately between four and five inches from the end thereof, said tape acting to absorb substantially all the ink from the underlying portion of the ribbon and a reverse mechanism actuating bar of rubber sand blast stencil tape approximately thick arranged transversely of the ribbon between the ribbon and said de-inking tape and adhesively attached to the ribbon, said deinking tape extending over said rubber bar and adhesively attached to the ribbon on both sides of the rubber bar.

10. In a typewriter ribbon comprising a spool and an inked ribbon wound thereon, the improvement which consists in a strip of latex rubber pressure sensitive de-inking masking tape of the same width as the ribbon and having an adhesive surface attached to the outer face of the ribbon for approximately between four and five inches from the end thereof, said tape extending approximately between one and two inches beyond the end of the ribbon and acting to absorb substantially all the ink from the underlying portion of the ribbon and a reverse mechanism actuating bar of rubber sand blast stencil tape approximately 9 thick arranged transversely of the ribbon between the ribbon and said de-inking tape and adhesively attached to the ribbon, said de-inking tape extending over said rubber bar and adhesively attached to the ribbon on both sides of the rubber bar.

11. In a typewriter ribbon comprising a spool and an inked ribbon wound thereon, the improvement which consists in a strip of latex rubber pressure sensitive de-inking masking tape of the same width as the ribbon and having an adhesive surface attached to the outer face of the ribbon for approximately between four and five inches from the end thereof, said tape extending approximately between one and two inches beyond the end of the ribbon, the tape having an outer surface of crepe paper and acting to absorb substantially all the ink from the underlying portion of the ribbon and a reverse mechanism actuating bar of rubber sand blast stencil tape approximately i thick arranged transversely of the ribbon between the ribbon and said de-inking tape and adhesively attached to the ribbon, said de-inking tape extending over said rubber bar and adhesively attached to the ribbon on both sides of the rubber bar.

12. In a typewriter ribbon comprising a spool and an inked ribbon wound thereon, the improvement which consists in a strip of adhesive de-inking tape of the same Width as the ribbon and having its adhesive surface attached to the outer face of the ribbon for a substantial distance from the end thereof, said adhesive tape extending a substantial distance beyond the end of the ribbon, the tape having an outer surface of crepe paper and acting to absorb substantially all the ink from the underlying portion of the ribbon and a reverse mechanism actuating rubber bar arranged transversely of the ribbon between the ribbon and said de-inking tape and adhesively attached to the ribbon, said de-inking tape extending over said rubber bar and adhesively attached to the ribbon on both sides of the rubber bar.

No references cited. 

